Machine for making paper boxes.



. Patented Oct. 28, |902.-

H'. INM'AN.

MACHINE FOR MAKING PAPE B BOXES. (Application filed Apr. 18, 1900.)

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H. INMAN.

MACHINE FOR MAKING PAPER BOXES (Application filed Apr. 18, 1900.,

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(Applicatiizn filed Apr. 18, 1800.)

MACHINE FOR MAKING PAPER BOXES.

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Patented Oct. 28, I902,

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H. INMAN. MACHINE FOR MAKING PAPER BOXES, (Application filed Apv. 18, 1900.)

No. 7I2,068.

QNo' Model.)

UNITED STATES PATENT OFFICE.

HORACE INMAN, OF AMSTERDAM; NEW YORK.

MACHINE FOR MAKING PAPER BOXES.

SPECIFICATION forming part of Letters Patent No. 712,068, dated October 28, 1902.

Application filed April 18, 1900. Serial No. 13,347. (No model.)

To all whom it may concern:

Be it known that I, HORACE INMAN, a citizen of the United States, residingat Amsterdam, in the county of Montgomery and State of New York, have invented certain new and useful Improvements in Machines for Making Paper Boxes, of which the following is a specification.

My invention relates to that class of machines intended to make box shells or blanks from continuous strips of paper or board; and my invention consists of means for cutting and scoring, pasting, and folding the strip, while maintaining its continuity, as fully set forth hereinafter and as illustrated in the accompanying drawings, in which- Figure 1 is a longitudinal side elevation of my improved machine; Fig. 2, a longitudinal sectional elevation; Fig. 3, a plan of the parts embracing the folding, cutting, and pasting devices; Fig. 4, a longitudinal section on the line 4 4, Fig. 3; Fig. 5, a transverse section on the line 5 5, Fig. 3. Fig. 6 is a face elevation of the terminal cutter. Figs. 2 to 5 are drawn to a larger scale than Fig. 1.

Upon the frame A are-mounted two pair of feed-rolls 10 11, the shafts of which are geared together at one end and driven from a spurwheel 12, to which intermittent motion is given from a crank pin upon a shaft 13 through the medium of appliances too well known to need description. There is also another pair of feed-rolls 14, the shafts of which are geared together and driven by means of sprockets and a chain from the shaft of one of the lower rolls of the pair 11, as shown in Fig. 1, or in any other suitable manner. On the frame between the rolls 11 and 14 are arranged the dies B O, of any suitable character, normally held open by springs 15 and brought together by the descent of a cross-head D, to which a reciprocating movement is imparted from the shaft 13 by means of the usual pitmen N or'by any suitable connections. The extent to which the upper die B is forced downward by the cross-head may be regulated with the utmost nicety by means of a wedge-plate E, the upper inclined surface of which is in contact with the lower inclined surface of a plate F, arranged beneath the cross-head D or forming part thereof, so that by moving either plate E or F longitudinally the lower surface of the plate E may be carried upward or downward. As shown, the plate F is fixed to the cross-head D, and the plate E is held against the plate F by screwbolts 16, passing through slots at in the crosshead, the plate E being adjusted longitudinally when the bolts are loosened by an adjusting-screw 60, passing through a bracket 18, secured to the cross-head.

Beyond the feed-rolls 14 is the folding device G of any suitable character, and beyond the latter is the secondary cutter H, which is followed by any suitable number of pressingrolls or other pressing device I. The sheet of paper to be converted into shells is in a continuous strip, forming a roll J, which sheet is carried to the feed-rolls 10 and 11 and between the d'ies, where it is slotted and scored and partially cut transversely, but is not wholly cut in order that it may be carried as a continuous sheet until pasted and folded and the edges connected tog ether, after which the cutter H severe the uncut portion, thus detaching the shell, the pressing-rollers or other pressing device I serving to hold the pasted edges together until they are so cemented that they will not become detached. The dies B C are of anysuitable character,-

form, and arrangement, but are provided with cutters 20, which sever the sheet transversely only a part of the width, so as not to break up the continuity of the strip.

The folder G may be of any suitable character, but, as shown, consists of two blades 21 22, Figs. 4 and 5, upon opposite sides of the table 23, carrying the strip, and each blade is carried by arms projecting from two disks 24 24 upon rock-shafts 25 25, parallel to the line of travel of the strip. These rock-shafts are rocked to carry the bladesfrom a lower position against the under side of the strip at both edges and over the top thereof to the position shown in Fig. 5, to thereby turn in the opposite sides of the strip, bending it upon the lines upon which it has been scored by the dies, these operations taking place during the time that the strip is at rest and being operated upon by the dies.

Any suitable appliances may be employed for rocking the shafts 25. As shown, there are two levers 26 26, arranged beneath cams 28 29 upon a shaft 27, driven from the shaft 13 by suitable gears, and each lever 26 is connected by an extensible rod 30 with a wristpin 31, projecting from one of the disks 24. The contact of the cams with the levers 26 carries the latter downward, one of the cams preceding the other in action, so that the folder-blades operate successively, whereby one side of the strip is turned over and down before the other, so that the edge of the latter may extend over and be pasted to that beneath it.

Each connecting-rod 30 and its attached lever is lifted by the action of a spring 32, connected to the rod and to a pin 33, project ing from the disk 24 at a side of the shaft 25 opposite to that occupied by the wrist-pin 31, whereby the contraction of the spring to lift the rod 30 also tends to turn the disk in the direction of its arrow.

The cutting device 11 may be of any suitable character, but, as shown, consists of a frame 35, Figs. 4 and G, carrying a stationary cross-piece 36, the edge of which constitutes the lower cutter and grooved to receive a sliding frame 37, carrying a cutter-blade 38, having a slightly-inclined lower cutteredge,which is against the cutting edge of the cross-piece 36. To the frame 37 is secured a rod 40, extending to a strap 41, fitting an eccentric 42 upon the shaft 27, so that the rotation of the latter reciprocates the frame and the upper cutter.

The above-described parts are all so timed that the strip is fed first between the dies, and thereby properly shaped, slotted, scored, and partially cut transversely. It is then carried to the folding device G and its edges successively turned in and,if desired,pasted together. It is then carried to the cutter H and transversely severed at the points left uncut by the cutters 20 and then passes through the pressing device I. By thus first scoring and partially cutting the strip and finishing the cutting after the folding is effected I preserve the continuity of the strip, so as to feed it properly until the shell or blank is practically finished. Generally one edge of the strip must be pasted so as to be united to the opposite edge when the two are folded in. When this is required, a pasterwheel 50 is placed upon the shaft of the lower feed-roll 14 above a paste-dish 51 and in position to supply a line of paste to one edge of the strip passing over the wheel. The wheel 50 is adjustable upon its shaft to accommodate it to different widths of strips. One mode of adjustment consists in providing the roll-shaft with a feather 52, which prevents the turning of the wheel on the shaft, and grooving the edge of the latter to receive a finger 53 upon a slide 54, which is adjustable upon a slotted plate 55, secured above the dish 51. A set-screw 56 serves to secure the parts after adjustment.

Without limiting myself to the precise construction and arrangement of the parts shown, I claim as my invention- 1. In a machine for making box shells or blanks from a continuous flat strip, the combination of a set of feed-rollers, the shafts of which are geared together, a second set of feed-rolls, the shafts of which are geared together and connected to be driven from the first set of feed-rollers, dies for scoring and cutting the flat strip arranged between the two sets of feed-rolls and provided with cutters arranged to partially sever the strip trans- Versely, springs for holding the cutters apart, a cross-head for operating the dies, means for vertically reciprocating the cross head, a folder device for folding the sides of the strip successively upon the unsevered portions, a cutter arranged beyond the folding devices for transversely severing the strip between the points out by the dies after it has been folded, and a pressing device for the severed pieces, substantially as described.

2. The combination of a reciprocating crosshead, a plate F having a lower inclined bearing-face and provided with slots, a plate E, having an upper inclined face, bolts passing through the slots and securing 'said plates, and adjusting means for shifting said plates, substantially as set forth.

3. The combination with means for feeding, cutting, and scoring a strip, of a table for supporting the latter, rock-shafts carrying blades arranged at opposite sides of the table, levers 26 and connecting-rods for operating the rock-shafts, and means for vibrating one lever in advance of the movement of the other, substantially as set forth.

4. The combination with the blades 21, rock-shafts, disks, levers 26, and connectingrods, of springs 32 connected with the disks and with the connecting-rods, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

HORACE INMAN.

W'itnesses:

H. B. WALDRON, CHAS. W. CLARK. 

